Bookmark and Share

Notice: On March 31, it was announced that Statalist is moving from an email list to a forum. The old list will shut down on April 23, and its replacement, statalist.org is already up and running.


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

st: RE: Transforming Unique IDs


From   Jan Bryla <JBR@finansraadet.dk>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   st: RE: Transforming Unique IDs
Date   Mon, 23 May 2011 12:42:39 +0200

I am not quite sure what the objective is, but the group function with -egen- would generate a new id based on the order of the old id.

Egen newid=group(id)

Regards
Jan Bryla

-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Dennis Kramer
Sent: 23. maj 2011 12:18
To: statalist@hsphsun2.harvard.edu
Subject: st: Transforming Unique IDs

Greetings,

I am working with a large panel data set and I need to transform the
current unique IDs into a new set of unique IDs while maintaining the
panel nature of the data. For example,

Year 1     ID1     Var 1    Var2     Var3    NewID1
Year 2     ID1     Var 1    Var2     Var3    NewID1
Year 3     ID1     Var 1    Var2     Var3    NewID1
Year 1     ID2     Var 1    Var2     Var3    NewID2
Year 2     ID2     Var 1    Var2     Var3    NewID2
Year 3     ID2     Var 1    Var2     Var3    NewID2
Year 1     ID3     Var 1    Var2     Var3    NewID3
Year 2     ID3     Var 1    Var2     Var3    NewID3
Year 3     ID3     Var 1    Var2     Var3    NewID3

does anyone have a algorithm to produce a new set of unique IDs while
maintaining the panel function? I have looked through the current FAQs
and past listserv discussions and have not found any suggestions that
would create a new ID while maintaining the panel groupings.

Thank you,
*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/

*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/


© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   Site index